Viewing archive of Friday, 15 June 2018

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2018 Jun 15 1239 UTC

SIDC Forecast

Solar flares

Quiet conditions (<50% probability of C-class flares)

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Quiet

	10cm flux	Ap
15 Jun 2018	072	006
16 Jun 2018	072	007
17 Jun 2018	072	007

Bulletin

Solar activity was very quiet with X-ray flux remaining below B level. Catania sunspot group 86 (NOAA active region 2713) is the only spotted region on the visible disk and it appears stable. Chances for C class flaring remain very low.

Only a small westbound CME was visible in SoHO/LASCO coronagraph images around 17:36UT which will not affect Earth.

Solar proton flux levels were at background values and are expected to remain so.

Solar wind conditions have been nominal with solar wind speed between 300-350 km/s and total magnetic field below 5 nT. The Bz component of the magnetic field was variable. The magnetic field phi angle indicates a negative sector connection. Solar wind conditions are expected to be nominal until at least June 18.

Geomagnetic conditions were quiet (local K Dourbes 1-2 and NOAA Kp 1) and are expected to remain so.

Today's estimated international sunspot number (ISN): 015, based on 18 stations.

Solar indices for 14 Jun 2018

Wolf number Catania	017
10cm solar flux	072
AK Chambon La Forêt	008
AK Wingst	///
Estimated Ap	007
Estimated international sunspot number	016 - Based on 21 stations

Noticeable events summary

Provided by the Solar Influences Data analysis Center© - SIDC - Processed by SpaceWeatherLive

All times in UTC

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